Structured details of a single therapeutic direction for an ordered item, such as a medication or blood transfusion order.

Use

A direction describes one or more sequential therapeutic administration patterns, coupled with an overall direction duration and details of any repetitive pattern of intended administration outside a single day.
For example: '1 tab in the morning, 1 tab at night, for 3 weeks, on Mondays, Wednesdays and Fridays'. This cluster allows multiple occurrences to enable representation of a complete set of dosage directions for a single medication order. The cluster can be renamed in template or at run-time to represent a specific dosing event such as 'loading dose', 'bolus'.
This archetype will generally be used in the context of a parent INSTRUCTION archetype, primarily Medication order but also for transfusion and dialysis orders.

Purpose

To record structured details of a single therapeutic direction for an ordered therapeutic/prescribable item.
Each direction generally applies for a given duration, or fixed number of administrations.